private static bool SetSpecialTypes <TResponse>(string mimeType, byte[] bytes, IMemoryStreamFactory memoryStreamFactory, out TResponse cs)
where TResponse : class, IOpenSearchResponse, new()
{
cs = null;
var responseType = typeof(TResponse);
if (!SpecialTypes.Contains(responseType))
{
return(false);
}
if (responseType == typeof(StringResponse))
{
cs = new StringResponse(bytes.Utf8String()) as TResponse;
}
else if (responseType == typeof(BytesResponse))
{
cs = new BytesResponse(bytes) as TResponse;
}
else if (responseType == typeof(VoidResponse))
{
cs = new VoidResponse() as TResponse;
}
else if (responseType == typeof(DynamicResponse))
{
//if not json store the result under "body"
if (mimeType == null || !mimeType.StartsWith(RequestData.MimeType))
{
var dictionary = new DynamicDictionary();
dictionary["body"] = new DynamicValue(bytes.Utf8String());
cs = new DynamicResponse(dictionary) as TResponse;
}
else
{
using var ms = memoryStreamFactory.Create(bytes);
var body = LowLevelRequestResponseSerializer.Instance.Deserialize <DynamicDictionary>(ms);
cs = new DynamicResponse(body) as TResponse;
}
}
return(cs != null);
}
internal bool TryParse(object defaultValue, Type targetReturnType, object value, out object newObject)
{
newObject = defaultValue;
if (value == null)
{
return(false);
}
if (targetReturnType.IsGenericType && targetReturnType.GetGenericTypeDefinition() == typeof(Nullable <>))
{
targetReturnType = targetReturnType.GenericTypeArguments[0];
}
try
{
var valueType = value.GetType();
if (targetReturnType.IsArray && value is DynamicValue v)
{
value = v.Value;
valueType = value.GetType();
}
if (targetReturnType.IsArray)
{
if (!valueType.IsArray)
{
return(false);
}
var ar = (object[])value;
var t = targetReturnType.GetElementType();
var objectArray = ar
.Select(a => TryParse(defaultValue, t, a, out var o) ? o : null)
.Where(a => a != null)
.ToArray();
var arr = Array.CreateInstance(t, objectArray.Length);
Array.Copy(objectArray, arr, objectArray.Length);
newObject = arr;
return(true);
}
if (valueType.IsAssignableFrom(targetReturnType))
{
newObject = value;
return(true);
}
var stringValue = value as string;
if (targetReturnType == typeof(DateTime) &&
DateTime.TryParse(stringValue, CultureInfo.InvariantCulture, DateTimeStyles.None, out var result))
{
newObject = result;
return(true);
}
if (stringValue != null)
{
if (targetReturnType == typeof(object))
{
newObject = Convert.ChangeType(value, targetReturnType);
return(true);
}
var converter = TypeDescriptor.GetConverter(targetReturnType);
if (converter.IsValid(stringValue))
{
newObject = converter.ConvertFromInvariantString(stringValue);
return(true);
}
}
else if (value is DynamicValue dv)
{
return(dv.TryParse(defaultValue, targetReturnType, dv.Value, out newObject));
}
else if (targetReturnType == typeof(string))
{
newObject = Convert.ChangeType(value, TypeCode.String, CultureInfo.InvariantCulture);
return(true);
}
else if (valueType.IsValueType)
{
newObject = Convert.ChangeType(_value, targetReturnType);
return(true);
}
else if (targetReturnType == typeof(DynamicDictionary) && valueType == typeof(Dictionary <string, object>))
{
newObject = DynamicDictionary.Create(value as Dictionary <string, object>);
return(true);
}
else if (targetReturnType == typeof(object))
{
newObject = value;
return(true);
}
}
catch
{
return(false);
}
return(false);
}